-10 to 55°C (with no condensation or icing),
for 3-year warranty: -10 to 50°C (with no condensation or icing)

Ambient operating humidity

25% to 85%

Storage temperature

-25 to 65°C (with no condensation or icing)

Altitude

2,000 m max.

Recommended fuse

T2A, 250 VAC, time lag, low shut-off capacity

Installation environment

Installation Category II, Pollution Class 2 (IEC 61010-1 compliant)

Input Ranges (Universal inputs)

Thermocouple/Platinum Resistance Thermometer

Analog input

Input type

Current

Voltage

Input specification

4 to 20 mA

0 to 20 mA

1 to 5 V

0 to 5 V

0 to 10 V

Setting range

Usable in the following ranges by scaling:
-1999 to 9999, -199.9 to 999.9,
-19.99 to 99.99 or -1.999 to 9.999

Set value

25

26

27

28

29

Alarm type

Each alarm can be independently set to one of the following 19 alarm types. The default is 2: Upper limit. (see note.)
Auxiliary outputs are allocated for alarms. ON delays and OFF delays (0 to 999 s) can also be specified.

Set
value

Alarm type

Alarm output operation

Description of function

When alarm
value X is
positive

When alarm
value X is
negative

0

Alarm function
OFF

Output OFF

No alarm

1

Upper- and
lower-limit *1

*2

Set the upward deviation in the set point for the
alarm upper limit (H) and the lower deviation in the
set point for the alarm lower limit (L). The alarm is
ON when the PV is outside this deviation range.

2
(default)

Upper-limit

Set the upward deviation in the set point by setting
the alarm value (X). The alarm is ON when the PV
is higher than the SP by the deviation or more.

3

Lower-limit

Set the downward deviation in the set point by
setting the alarm value (X). The alarm is ON when
the PV is lower than the SP by the deviation or more.

4

Upper- and
lower-limit
range *1

*3

Set the upward deviation in the set point for the
alarm upper limit (H) and the lower deviation in the
set point for the alarm lower limit (L). The alarm is
ON when the PV is inside this deviation range.

5

Upper- and
lower-limit with
standby
sequence *1

*5

*4

A standby sequence is added to the upper- and
lower-limit alarm (1). *6

6

Upper-limit
with standby
sequence

A standby sequence is added to the upper-limit
alarm (2). *6

7

Lower-limit
with tandby
sequence

A standby sequence is added to the lower-limit
alarm (3). *6

8

Absolute-value
upper-limit

The alarm will turn ON if the process value is larger
than the alarm value (X) regardless of the set point.

9

Absolute-value
lower-limit

The alarm will turn ON if the process value is smaller
than the alarm value (X) regardless of the set point.

10

Absolute-value
upper-limit
with standby
sequence

A standby sequence is added to the absolute-value
upper-limit alarm (8). *6

11

Absolute-value
lower-limit with
standby
sequence

A standby sequence is added to the absolute-value
lower-limit alarm (9). *6

12

LBA (alarm 1
type only)

-

*7

13

PV change
rate alarm

-

*8

14

SP absolute
value upper
limit alarm

This alarm type turns ON the alarm when the set
point (SP) is higher than the alarm value (X).

15

SP absolute
value lower
limit alarm

This alarm type turns ON the alarm when the set
point (SP) is lower than the alarm value (X).

16

MV absolute
value upper
limit alarm *9

Standard Control

Standard Control

This alarm type turns ON the alarm when the
manipulated variable (MV) is higher than the alarm
value (X).

Heating/Cooling
Control (Heating
MV)

Heating/Cooling
Control (Heating
MV)
Always ON

17

MV absolute
value lower
limit alarm *9

Standard Control

Standard Control

This alarm type turns ON the alarm when the
manipulated variable (MV) is lower than the alarm
value (X).

Heating/Cooling
Control (Cooling
MV)

Heating/Cooling
Control (Cooling
MV)
Always ON

*1 With set values 1, 4 and 5, the upper and lower limit values can be set independently for each alarm type, and are
expressed as "L" and "H."
*2. Set value: 1, Upper- and lower-limit alarm
*3. Set value: 4, Upper- and lower-limit range
*4. Set value: 5, Upper- and lower-limit with standby sequence
For Upper- and Lower-Limit Alarm Described Above *2
• Case 1 and 2
Always OFF when the upper-limit and lower-limit hysteresis overlaps.
• Case 3: Always OFF
*5. Set value: 5, Upper- and lower-limit with standby sequence
Always OFF when the upper-limit and lower-limit hysteresis overlaps.
*6. Refer to the E5[]C Digital Temperature Controllers User's Manual (Cat. No. H174) for information on the operation
of the standby sequence.
*7. Refer to the E5[]C Digital Temperature Controllers User's Manual (Cat. No. H174) for information on the PV change
rate alarm. This setting cannot be used with a position-proportional model.
*8. Refer to the E5[]C Digital Temperature Controllers User's Manual (Cat. No. H174) for information on the PV change
rate alarm.
*9. When heating/cooling control is performed, the MV absolute upper limit alarm functions only for the heating operation
and the MV absolute lower limit alarm functions only for the cooling operation.

*1. The indication accuracy of K thermocouples in the -200 to 1300°C range, T and N thermocouples at a temperature of
-100°C max., and U and L thermocouples at any temperatures is ±2°C ±1 digit max. The indication accuracy of the
B thermocouple at a temperature of 400°C max. is not specified. The indication accuracy of B thermocouples at a
temperature of 400 to 800°C is ±3°C max. The indication accuracy of the R and S thermocouples at a temperature
of 200°C max. is ±3°C ±1 digit max. The indication accuracy of W thermocouples is (±0.3 of PV or ±3°C, whichever
is greater) ±1 digit max. The indication accuracy of PL II thermocouples is (±0.3% of PV or ±2°C, whichever is
greater) ±1 digit max.
*2. Ambient temperature: -10°C to 23°C to 55°C, Voltage range: -15% to 10% of rated voltage
*3. K thermocouple at -100°C max.: ±10°C max.
*4. The unit is determined by the setting of the Integral/Derivative Time Unit parameter.
*5. Refer to information on maritime standards in Shipping Standards on Catalog for compliance with Lloyd's Standards.
*6. Industrial electromagnetic environment (EN/IEC 61326-1 Table 2)

* The baud rate, data bit length, stop bit length, and vertical parity can be individually set using the Communications
Setting Level.

Communications Functions

Programless
communications *1

You can use the memory in the PLC to read and write E5[]C parameters, start and stop
operation, etc. The E5[]C automatically performs communications with PLCs. No
communications programming is required.
Number of connected Temperature Controllers: 32 max. (Up to 16 for the FX Series)
Applicable PLCs
OMRON PLCs
CS Series, CJ Series, or CP Series
Mitsubishi Electric PLCs
MELSEC Q Series, L Series, or FX Series (compatible with the FX2 or FX3 (excluding the FX1S))
KEYENCE PLCs
KEYENCE KV Series

Component
Communications *1

When Digital Temperature Controllers are connected, set points and RUN/STOP commands can
be sent from the Digital Temperature Controller that is set as the master to the Digital
Temperature Controllers that are set as slaves.
Slope and offsets can be set for the set point.
Number of connected Digital Temperature Controllers: 32 max. (including master)

Copying *2

When Digital Temperature Controllers are connected, the parameters can be copied from the
Digital Temperature Controller that is set as the master to the Digital Temperature Controllers
that are set as slaves.

MELSEC is a registered trademark of Mitsubishi Electric Corporation.
KEYENCE is a registered trademark of Keyence Corporation.
*1 A Temperature Controller with version 1.1 or higher is required.
A Temperature Controller with version 2.1 or higher is required for the FX Series or the KV Series.
*2 Both the programless communications and the component communications support the copying.

Current Transformer (Order Separately) Ratings

Dielectric strength

1,000 VAC for 1 min

Vibration resistance

50 Hz, 98 m/s2

Weight

E54-CT1: Approx. 11.5 g, E54-CT3: Approx. 50 g

Accessories (E54-CT3 only)

Armatures (2)
Plugs (2)

Heater Burnout Alarms and SSR Failure Alarms

CT input (for heater current detection)

Models with detection for single-phase heaters: One input
Models with detection for single-phase or three-phase heaters: Two
inputs

*1. For heater burnout alarms, the heater current will be measured when the control output is ON, and the output will
turn ON if the heater current is lower than the set value (i.e., heater burnout detection current value).
*2. For SSR failure alarms, the heater current will be measured when the control output is OFF, and the output will turn
ON if the heater current is higher than the set value (i.e., SSR failure detection current value).
*3. The value is 30 ms for a control period of 0.1 s or 0.2 s.
*4. The value is 35 ms for a control period of 0.1 s or 0.2 s.